git-annex/RemoteDaemon/Types.hs

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{- git-remote-daemon data types.
-
- Copyright 2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE TypeSynonymInstances, FlexibleInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module RemoteDaemon.Types where
import Common.Annex
import qualified Git.Types as Git
import qualified Utility.SimpleProtocol as Proto
-- Messages that the daemon emits.
data Emitted
= CHANGED RemoteName RefList
| STATUS RemoteName UserMessage
| ERROR RemoteName UserMessage
-- Messages that the deamon consumes.
data Consumed
= PAUSE
| RESUME
| PUSH RemoteName
| RELOAD
type RemoteName = String
type UserMessage = String
type RefList = [Git.Ref]
instance Proto.Sendable Emitted where
formatMessage (CHANGED remote refs) =
["CHANGED"
, Proto.serialize remote
, Proto.serialize refs
]
formatMessage (STATUS remote msg) =
["STATUS"
, Proto.serialize remote
, Proto.serialize msg
]
formatMessage (ERROR remote msg) =
["ERROR"
, Proto.serialize remote
, Proto.serialize msg
]
instance Proto.Sendable Consumed where
formatMessage PAUSE = ["PAUSE"]
formatMessage RESUME = ["RESUME"]
formatMessage (PUSH remote) = ["PUSH", Proto.serialize remote]
formatMessage RELOAD = ["RELOAD"]
instance Proto.Receivable Emitted where
parseCommand "CHANGED" = Proto.parse2 CHANGED
parseCommand "STATUS" = Proto.parse2 STATUS
parseCommand "ERROR" = Proto.parse2 ERROR
parseCommand _ = Proto.parseFail
instance Proto.Receivable Consumed where
parseCommand "PAUSE" = Proto.parse0 PAUSE
parseCommand "RESUME" = Proto.parse0 RESUME
parseCommand "PUSH" = Proto.parse1 PUSH
parseCommand "RELOAD" = Proto.parse0 RELOAD
parseCommand _ = Proto.parseFail
instance Proto.Serializable [Char] where
serialize = id
deserialize = Just
instance Proto.Serializable RefList where
serialize = unwords . map Git.fromRef
deserialize = Just . map Git.Ref . words